Sources
Where the data comes from
Demographics · Property
U.S. Census Bureau — American Community Survey (5-year), at city, county, and ZIP-code (ZCTA) level.
Schools
U.S. Dept. of Education — NCES Common Core of Data (public schools, enrollment, grade spans).
Crime
FBI Uniform Crime Reporting / NIBRS (agency rates vs. state and national); plus incident-level open data from major-city portals for address searches.
Natural disasters
FEMA National Risk Index (county hazard ratings) and the National Flood Hazard Layer (flood zone at a point).
Environmental hazards
U.S. EPA — Toxics Release Inventory (facilities reporting chemical releases).
Seismic activity
U.S. Geological Survey (recent earthquakes).
Weather · Air quality
Open-Meteo (current conditions, US AQI) and the U.S. National Weather Service (active alerts).
Sex-offender registry
Public state sex-offender registries (first-party, continuously refreshed).
Incarceration records
State and county correctional rosters (first-party).
Neighborhood & landmarks
Wikipedia / Wikidata, the National Park Service, the Library of Congress, and OpenStreetMap (nearby places & amenities).
Honesty
Coverage & freshness
- We show a module only when we have real data for it. Where a public agency doesn't report (for example, a police department that doesn't submit crime data to the FBI), we say so rather than invent a number.
- Live conditions — weather, air quality, active alerts, recent crime and earthquakes — are fetched in real time and reflect the moment you view the page.
- Census-based figures (demographics, property, income) come from the most recent 5-year American Community Survey and are updated as new vintages publish.
- Address searches orient every map and distance to the exact point — how far the nearest offender, school, or recent incident is from that address.